| 摘要 |
<p>A blank cardboard structure (1) for a cardboard liquid container, having horizontal and vertical fold lines (7, 8), the depth of the grooves of the said fold lines (7, 8) gradually decreasing towards the crossings (9) of the respective fold lines (7, 8). Thus, cracks or pinholes at the corner of the folded blank (1) due to the folding stress in case of forming a container can be completely prevented. </p> |
